SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('7a02d8eddde8e6f9ddebbf805dcf0f70','0','18.224.63.87','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714831576','board.php?boardid=131&page=2&daysprune=1000&sortfield=replycount&sortorder=ASC&sid=522d39fa034e86580b07307da89bf18e','0','0','')
mysql error: Duplicate entry '7a02d8eddde8e6f9ddebbf805dcf0f70' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 04.05.2024 @ 16:06
Script: /board.php?boardid=131&page=2&daysprune=1000&sortfield=replycount&sortorder=ASC&sid=522d39fa034e86580b07307da89bf18e
Referer: